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Finding the Fourth Proportional to 85,994.44, 128,992.38 and 23,668.36

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Solution

The fourth proportional to 85,994.44, 128,992.38 and 23,668.36 is: 35,502.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,994.44 : 128,992.38 = 23,668.36 : x
  2. Step 2: Convert to fraction form
    85,994.44/128,992.38 = 23,668.36/x
  3. Step 3: Cross multiply
    85,994.44x = 128,992.38 × 23,668.36
  4. Step 4: Simplify right side
    85,994.44x = 3,053,038,087.10
  5. Step 5: Solve for x
    x = 3,053,038,087.10/85,994.44
  6. Step 6: Final answer
    x = 35,502.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.